About OpenSpec
Summary
OpenSpec builds an open-source, spec-driven framework that helps developers plan complex software features before and during implementation. Developers write lightweight spec documents that keep both teammates and coding agents aligned as requirements evolve and code changes. The framework replaces ad-hoc, scattered planning by acting as durable, structured context that coding agents read throughout the build.
Business model
Free and open-source under the MIT license
Go-to-market
Developers adopt OpenSpec through self-serve installation via npm, pnpm, bun, yarn, or nix, and the open-source repository on GitHub drives organic discovery and community growth.
From the Y Combinator listing
Plan mode for complex features
OpenSpec is an open-source, spec-driven framework. We help developers plan complex features by creating lightweight spec documents that serve as durable context for their coding agents. With 20k+ GitHub stars, we’re one of the leading spec-driven frameworks, used by thousands of developers and teams to plan and ship with the coding agent of their choice. Our philosophy is simple: keep planning lightweight and iterative, and match how software actually gets built, messy, evolving, and real, without dragging teams into rigid, bureaucratic workflows.
Facts
- B2B / B2B
- Active
- Early
Founders (1)
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